[LLVMbugs] [Bug 10832] New: "movbe" is not recognized as an x86 mnemonic

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Sep 1 16:31:11 PDT 2011


           Summary: "movbe" is not recognized as an x86 mnemonic
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: kkhoo at perfwizard.com
                CC: llvmbugs at cs.uiuc.edu

According to the "Intel® 64 and IA-32 Architectures Software Developer’s Manual
Volume 2 (2A & 2B): Instruction Set Reference, A-Z", p. 3-662:

0F 38 F0 /r MOVBE r32, m32

$ clang -mavx avx.s -c
/var/folders/J5/J5ahEYzWEFC1BPEW37amTE+++TM/-Tmp-/cc-1qUg1a.s:5:1: error:
invalid instruction mnemonic 'movbe'
movbe (%ecx), %eax

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